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Finding the Fourth Proportional to 67,992.05, 101,989.00 and 18,071.88

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Solution

The fourth proportional to 67,992.05, 101,989.00 and 18,071.88 is: 27,108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,992.05 : 101,989.00 = 18,071.88 : x
  2. Step 2: Convert to fraction form
    67,992.05/101,989.00 = 18,071.88/x
  3. Step 3: Cross multiply
    67,992.05x = 101,989.00 × 18,071.88
  4. Step 4: Simplify right side
    67,992.05x = 1,843,133,419.16
  5. Step 5: Solve for x
    x = 1,843,133,419.16/67,992.05
  6. Step 6: Final answer
    x = 27,108.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.